A novel deep eutectic solvent-based ionic liquid used as electrolyte for dye-sensitized solar cells

作者：Jhong, Huei-Ru; Wong, David Shan-Hill^*; Wan, Chi-Chao; Wang, Yung-Yun; Wei, Tzu-Chien

来源：Electrochemistry Communications, 2009, 11(1): 209-211.

DOI：10.1016/j.elecom.2008.11.001

• Dye-sensitized solar cells
• Ionic liquids
• Deep eutectic solvent
• Metal-free organic dye
• Incident photon-to-current conversion efficiency (IPCE)

We utilize a quaternary ammonium salt-derivative ionic liquid called G.Cl which is a eutectic mixture of glycerol and choline iodide as electrolyte for dye-sensitized solar cells. Such eutectic compound belongs to a new series of ionic liquid called deep eutectic solvents (DES), which possess many outstanding features compared to the traditional imidazolium-based ionic liquids including cheap raw materials, simple preparation procedures and better biocompatibility. Current-voltage characteristics of the G.Cl/PMII-based binary electrolytes stand at 0.533 V on V-oc, 12.0 mA cm (2) on J(sc), 0.582 on fill factor, and 3.88% cell efficiency under AM 1.5. 100 mW/cm(2) illuminations. The comparable cell performance together with all the above advantages makes G.CI as a strong candidate for future electrolyte development for dye-sensitized solar cells (DSSCs).

• 出版日期2009-1
• 单位清华大学